This is a "nothing burger"....I can't believe it took them like 2 in a half year to finally come to this decision. (which many people online perceive that as desperation)
the next variables are.
1. how much ATACMs, shorm shadow and jassms can get produced?
2. How much will be given in 2 months assuming Trump puts a halt?
3. What air defenses are present in density?
4. Time period of when deliveries will happen? The longer it drags the more effective Russian air defenses would be giving more time for interceptions depending on the gains they make on Ukraine for each day which increased dramatically this month and will do so the next following months.
5. Will the deliveries get immediately targeted in Ukraine since most of Russia's massive strikes were only periodic.
Only countermeasures now is probably increased drone/aircraft surveillance with satellite imagery to target MLRS systems before they strike and maybe a more denser air defense network than before that allowed some of their air defense launchers to get destroyed by a barrages of missiles.
It's been telegrpahed for months, like many other calculated decisions by the West. Ukraine no longer has large quantities of ATACMS, SCALP-EG and Stormshadow. GMLRS and JSOW are mid range weapons that will do nothing to impact Russian assets and infrastructure. JASSM was never approved for transfer, which furthers adds to the lack of long range Western weapons in the inventory.
USA
This decision has only now been made because North Korea is actively joining the war and USA is looking to help Ukraine create balance.
If Ukraine had 500 long range cruise missiles and ATACMS in their inventory, this would be something real. My guess is that as of right now they have maybe 100 (non-domestic) long range strike weapons at their disposal. That includes a combination of Stormshadow, SCALP-EG and ATACMs.

